Ocean Rig is an international offshore drilling contractor providing oilfield services for offshore oil and gas exploration, development and production drilling, and specializing in the ultra-deepwater and harsh-environment segment of the offshore drilling industry. The company owns and operates 13 offshore ultra deepwater drilling units, comprising of 2 ultra deepwater semisubmersible drilling rigs and 11 ultra deepwater drillships, 1 of which is scheduled to be delivered to the Company during 2015, 1 of which is scheduled to be delivered to the Company during 2016 and 2 of which are scheduled to be delivered during 2017.